net: ethernet: Add helper for MACs which support pause

Rather than have the MAC drivers manipulate phydev members, add a helper function for MACs supporting Pause, but not Asym Pause. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Sep 13, 2018 · c306ad3 · c306ad3
1 parent af8d9bb
commit c306ad3
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Showing 4 changed files with 17 additions and 4 deletions.
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -890,7 +890,7 @@ static int bcm_enet_open(struct net_device *dev)
 		}
 
 		/* mask with MAC supported features */
-		phydev->supported |= SUPPORTED_Pause;
+		phy_support_sym_pause(phydev);
 		phy_set_max_speed(phydev, SPEED_100);
 
 		if (priv->pause_auto && priv->pause_rx && priv->pause_tx)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
@@ -1950,14 +1950,12 @@ static int fec_enet_mii_probe(struct net_device *ndev)
 		phy_remove_link_mode(phy_dev,
 				     ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
 #if !defined(CONFIG_M5272)
-		phy_dev->supported |= SUPPORTED_Pause;
+		phy_support_sym_pause(phy_dev);
 #endif
 	}
 	else
 		phy_set_max_speed(phy_dev, 100);
 
-	phy_dev->advertising = phy_dev->supported;
-
 	fep->link = 0;
 	fep->full_duplex = 0;
 

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
@@ -1783,6 +1783,20 @@ void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode)
 }
 EXPORT_SYMBOL(phy_remove_link_mode);
 
+/**
+ * phy_support_sym_pause - Enable support of symmetrical pause
+ * @phydev: target phy_device struct
+ *
+ * Description: Called by the MAC to indicate is supports symmetrical
+ * Pause, but not asym pause.
+ */
+void phy_support_sym_pause(struct phy_device *phydev)
+{
+	phydev->supported |= SUPPORTED_Pause;
+	phydev->advertising = phydev->supported;
+}
+EXPORT_SYMBOL(phy_support_sym_pause);
+
 /**
  * phy_support_asym_pause - Enable support of asym pause
  * @phydev: target phy_device struct

diff --git a/include/linux/phy.h b/include/linux/phy.h
@@ -1050,6 +1050,7 @@ int phy_start_interrupts(struct phy_device *phydev);
 void phy_print_status(struct phy_device *phydev);
 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
+void phy_support_sym_pause(struct phy_device *phydev);
 void phy_support_asym_pause(struct phy_device *phydev);
 
 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,